Synthesis of Poly(2-methoxy-5-methyl-1,4-phenylenevinylene) and its Poly(1,4-phenylenevinylene) Copolymers: Electrical and Third-Order Nonlinear Optical Properties

Jeong Ik Lee, Hong Ku Shim, Geon Joon Lee, Dongho Kim

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Abstract

Asymmetrically disubstituted poly(2-methoxy-5-methyl-1,4-phenylenevinylene) (PMMPV) and a series of poly(1,4-phenylenevinylene-co-2-methoxy-5-methyl-1,4-phenylenevinylene)s (poly(PV-co-MMPV)) were synthesized through a water-soluble precursor route. These polymers were characterized using UV-visible, FT-IR spectroscopy, and a DSC, TGA thermal analyzer. The electrical conductivities of the polymers were investigated by the four-in-line method at room temperature. A PMMPV film can be stretched up to 5 times and doped with FeCl 3 and I 2 to give electrical conductivities of 27 and 7.4 S/cm, respectively, along the drawn direction. In copolymers, as the content of the MMPV unit increases, the electrical conductivity steadily increases. The x (3) (-3ω; ω, ω, ω) value of PMMPV was determined by the third harmonic generation (THG) technique at 1907 nm, the fundamental wavelength. The measured χ (3) value was 7.5 × 10 -12 esu.

Original languageEnglish
Pages (from-to)4675-4680
Number of pages6
JournalMacromolecules
Volume28
Issue number13
DOIs
Publication statusPublished - 1995 Jun 1

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All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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